HT SWITCHGEAR

HT SWITCHGEAR

               Technical Information of HT Switchgear:

              

                   TYPE                                        VCB                                                                 LBS              

                         Model                                     VHT630 VHT800 VHT1250                                               LHT630 LHT800 LHT800

                         Rated Voltage (KV)                12          12             12                                                          12           12            12

                         Rated Current (A)                  630        800           1250                                                     630          800      1250

                        Short Circuit Breaking         16/20      20/25        50/63/80                                               25            25           25

                        Current (KA)

                        Basic impulse level (KV)       75        75               75                                                         75           75           75

                        Short Circuit Making                50         63               50                                                       50            50           50

                        Current (KA)

                        Max. interrupting time            3             3                3                                                            3              3              3

                        (Cycle

                        Max. Opening time (Cycle)    2.5         2.5            2.5                                                        2.5          2.5           2.5

                        Max. Closing Time (Cycle)   2.5          2.5            2.5                                                         3              3               3

                         Normal Operating DutyO-3-CO-CO  O-3-CO-CO O-3-CO-CO

                        Dimension                           

                        Fixed/Draw-out    100×80×210 100×80×210 100×80×210              100×90×210 100×90×210 100×90×210

     

                      (L×W×H.cm

HT SWITCHGEAR:

The High Tension switchgear are used switching for system voltage of mid level (6.30kv-33kv) as well as high level voltage (33kv-230kv). For lower capacity of sub-station it is used as LBS but for higher capacity of sub-station it used as VCB, MOCB, SF6-CB these are facilitating both manual and remote operation.

CONSTRUCTION:

·        Metal enclosed and air ventilated with sheet steel of SWG-14.

·        Properly welded steel structure

·        Low voltage compartment on the top of the cubicle

·        Long creepier distance

·        Circuit breaker mounted fixed or withdraw able truck

·        Single bus-bar

·        Fully factory assembled

·        Power coating point

·        Cable entrance usually provided in the bottom f the cubicles

·        Top entry can also be provided upon request

TYPE:

·        LBS (Load Break Switch) Manual

·        LBS ( Load Break Switch) Motor Drive

·        VCB (Vacuum Circuit Breaker)

·        MOCB (Minimum Oil Circuit Breaker)

·        SF6-CB (Sulpher Hexa Floride Circuit Breaker)

PERSONNEL SAFETY:

·        All switching operations performed with front door enclosed.

·        Earthed metal partitions contact with line parts.

FEATURES:

·        Circuit Breaker mounted on withdraw able truck also fixed type on request

·        Suitable for rapid auto re-closing duty

·        The charging time of the breaker is only 5 to 6 sec

·        Adequate phase clearance and height as per standards to ensure safe operation

• The spring can be charged electrically, by DC or AC through
• Rectifier by DC also manually by charging motor
• Motor and manual operating device provides remote control function
• Instant trip function
• The electrical devices used in the units allow future changes design, there by assuring a high device of diversity
• The mounting, erection and commissions is very simple
• The device which are out of services in the equipment are easily accessible
• Additional accessories can be provided for VCB servicing such as;

• Auxiliary Switch (7NO+&NC),
• Closing Coil (24,30,48,110,220V DC/AC),
• Tripping Coil (24, 30, 48,110,220V DC/AC).